Nothing but encouraging her natural instincts. She soon learn what "mouse" meant and to look where I was pointing. That worked for all non hopping rodents except moles, none of my cats would do moles. I had to teach her "rabbit" when those got bad. She had to let me pick her up and then look where I was pointing for those. And she was hyperactive, she fell countless times doing stupid stuff, and hurting herself doing other stupid stuff (and fighting) until we got the farm and she had plenty of critters to keep her occupied. I inherited another hyperactive one I have now but she doesn't know what to do even if she gets lucky and catches something.
But I have had other good hunters and actually hunting with them is good training. One I got as a kitten and he was terrified of mice at first. I had a horse and a bad mouse infestation in the feed. I taught him by swimming a mouse until it was too tired to do much and then giving it to him, he soon got the idea and we did many barn cleanings together. I have used the exhausted mouse method to train others, but now I am too old and tired and my problem here is squirrels, and my inherited cat may never learn that charging is not the way to go about it but at least she keeps them at bay unless the weather is bad. Everything is screened or mulched; squirrels are much worse in town than in the country or woods.
It may be a good idea to feed the birds, face it - you are out numbered!
